baber/WOPTO huggingface dataset:
Patent GB-717543-A (GB)
Title: Improvements in or relating to primary batteries
IPC: H01M6/46
Filed: 1952-05-15
Abstract: 717,543. Batteries. BURGESS BATTERY CO. May 15, 1952, [June 5, 1951.] No. 12315/52. Class 53. [Also in Group V] The cells of a layer-type battery are separated by sheets 24 of flexible insulating fusible material, for example polyethylene or rubber hydrochloride, which are folded round the edges of the cells. The turned-up edges of the sheets overlap and are secured together by heat and pressure to form an outer casing 225 as shown in Fig. 7. An outer casing may also be provided by wrapping several turns of insulating material round the stack of cells and subjecting the whole to heat and pressure in a device shown in Figs. 4 and 5. The stack is pressed between rods 34, 36 before the strip to form the casing, 44, is wound on and the stack is then enclosed in a two-part mould 46 which is electrically heated by coils 52, 54. Fig.. 6 shows an alternative construction in which the separate sheets between the cells are replaced by a single sheet 70 wound zigzag round the cells. Each cell comprises as shown in Fig. 2 a zinc tray 10 lined with paper and containing a manganese dioxide and carbon mix 14 moistened with ammonium chloride and zinc chloride. A carbon plate 16 is provided with a projecting mass 18 consisting of silver particles bonded with wax which projects through an opening 26 in the separating sheet and makes contact with the zinc tray of the adjacent cell.
Patent GB-908332-A (GB)
Title: Non-pungent compositions comprising 1-cyclopentyl-2-aminopropane
IPC: A61K9/00
Filed: 1961-04-06
Abstract: 1-Cyclopentyl-2-aminopropane and its volatile salts, e.g. the carbonate and carbamate, are rendered less pungent and suitable for use as an inhalent nasal decongestant by addition thereto of propylene glycol, e.g. in an amount of from 5-200% (preferably 30-75%) by weight of the amine.  The compositions thus produced may optionally also contain aromatic materials and may be absorbed on to a suitable solid, e.g. a cotton or plug for use in a cartridge inhaler.
Patent GB-396351-A (GB)
Title: Manufacture of a peroxide from tetrahydronaphthalene
IPC: C07C409/14
Filed: 1933-04-28
Abstract: 1 : 2 : 3 : 4-tetrahydronaphthalene-1-peroxide is obtained by treating tetrahydronaphthalene with a gas containing oxygen either in the absence of a catalyst at a temperature below 100 DEG  or in presence of a catalyst, below 60 DEG .  Suitable catalysts specified are tin, lead, or lead oxide.  The product may be crystallised out. According to examples, tetra-hydronaphthalene is treated with oxygen or air at ordinary temperature, with air in presence of tin filings, and with air, followed by separation of the product by distillation, precipitation with petroleum ether, or separation of the sodium salt with caustic soda, and addition of acid to free the peroxide.
Patent GB-571028-A (GB)
Title: Improvements in or relating to suspension devices for motor vehicles
IPC: B60G15/12
Filed: 1943-07-30
Abstract: 571,028. Vehicle spring suspensions; shock-absorbers. BALLAMY, L. M., and SHEEPSHANKS, R. H. July 30, 1943, No. 12430. [Classes 108 (ii) and 108 (iii)] In a motor vehicle suspension of the kind in which a pair of co-axial wheels 11, 12 are independently sprung, each wheel being carried at the outer end of a transverse half-axle 13 or 14 pivoted at its inner end 15 or 16 about a longitudinal axis, the half-axles are urged downwardly by resilient means of the fluid pressure, telescopic type containing air or other gas under pressure. As shown, the resilient means comprise suspension units of the telescopic oleo-pneumatic type pivotally connected to the vehicle body 10 by brackets 25, 26 and to the half-axles at points 27, 28. Each unit consists of a cylinder 29 containing a plunger 30 having a piston head 33 formed with passages 34 adapted to be closed by an annular damping valve 35 slidable on a central stem 36, a fine axial passage 37 in the stem forming the sole means of communication between the liquidfilled cylinder space 38 and the plunger space 39 when the valve is closed. A floating piston 40 slidable in the plunger separates the space 39 from a space 41 filled with compressed air. When the unit is compressed, liquid is expelled freely from the cylinder space 38 through the passages 34 into the space 39 forcing the piston 40 downwards against the pressure of the air in the space 41 while, during rebound, due to the air pressure, flow of liquid from the space 39 to the space 38 occurs only through the passage 37, the valve 35 closing the passages 34. To prevent lateral canting of the body, a pair of auxiliary suspension devices 42, 43 also of the oleo-pneumatic type, or alternatively constituted by hydraulic or other shockabsorbers, are pivotally connected between pivots at 44, 45 on the body and the top ends of brackets 46, 47 formed on or attached to the half-axles, the devices being inclined at an angle of less than 45 degrees to the horizontal. Two or more compressed-gas suspension units may be provided for each half-axle and, additionally, other spring means such as a torsion bar, as described in Specification 444,273, or a centrally pivoted transverse spring, as described in Specification 534 079. For steering purposes, the stub axles 19, 20 of the wheels 11, 12 are connected with the half-axles by king pin joints 21, 22 and the wheels steered by the means described in Specification 429,627.
Patent GB-220068-A (GB)
Title: Improvements in the front axle springing of motor tractors
IPC: B60G11/08
Filed: 1923-05-09
Abstract: 220,068. Hill, W. L. May 9, 1923. Springs, arrangement of; equalizing load on wheels.-A front axle suspension, particularly for motor tractors, comprises a transverse spring b supporting the vehicle and suspended by links c immediately below the ends of the axle a, the centre portion a<3> of the axle being bent or deflected forwardly or rearwardly to allow the spring to extend beside such portion. A loop d shackled to the centre of the spring is connected by a bolt to the eye-piece e on the vehicle. The Provisional Specification also describes the axle as being bent downwardly, the spring being arranged above the axle with its ends resting on the higher end portions thereof. Reference has been. directed by the Comptroller to Specifications 8/78 and 204,515.
Patent GB-1424981-A (GB)
Title: Process for preparing gelatin-based graft copolymers
IPC: G03C1/047
Filed: 1974-03-20
Abstract: 1424981 Graft polymers of hydrolysed gelatine E I DU PONT DE NEMOURS & CO 20 March 1974 [23 March 1973] 12451/74 Heading C3G [Also in Division G2] A gelatine-based graft polymer is made by (a) hydrolysing gelatine by heating in an aqueous solution of a hydrolysing agent which is an acid at a pH of 0À1 to 1.0 or a base at a pH of 10-5 to 13.5, optionally modifying the hydrolysed gelatine by reaction at a pH of 10 to 13.5 with at least one dibasic or tetrabasic acid anhydride, and (b) reacting the resulting product with at least one ethylenically unsaturated polymerizable monomer in the presence of a polymerization catalyst. Examples are given in which gelatine is (a) hydrolysed in aqueous NaOH, reacted with succinic anhydride and grafted with (i) vinylidene chloride followed by n-butyl acrylate of (ii) ethyl acrylate, n-butyl acrylate, methyl methacrylate, methyl acrylate, diethyleneglycol diacrylate, acrylic acid, or nbutyl methacrylate, glycidyl methacrylate, or methacrylic acid; (b) hydrolysed as in (a) and grafted with ethyl acrylate; (c) hydrolysed and reacted with succinic anhydride as in (a), further modified with allyl aldehyde of 2,4-dihydroxybenzaldehyde and grafted with ethyl acrylate; (d) hydrolysed as in (a), reacted with maleic anhydride and further reacted with an aldehyde and grafted as in (c); (e) hydrolysed in aqueous HCl and grafted with ethyl acrylate; (f) hydrolysed and reacted with succinic anhydride, modified by reaction with benzaldehyde-osulphonic acid (sodium salt) and grafted with ethyl acrylate; (g) hydrolysed in aqueous LiOH, HNO 3  or KOH, reacted with succinic anhydride and grafted with ethyl acrylate and (f) hydrolysed in aqueous HCl, reacted with succinic anhydride followed by allyl aldehyde and grafted with ethyl acrylate. The graft polymers produced are incorporated in photographic silver halide emulsions (see Division G2).
Patent GB-201636-A (GB)
Title: Improvements in mop wringers
IPC: A47L13/58
Filed: 1922-05-03
Abstract: 201,636. Kitching, H. May 3, 1922. Mop-wringers.-A wire or rod 1, Fig. 1, is coiled into the form of a helix and fixed at the top to a plate 3 attached to a bucket, the bottom of the wire being coiled inwardly and upwardly to form a stop for the end of the mop. Alternative forms of stop for the mop comprise a perforated plate and a grid. The wire is supported by a bent strip 2. The plate 2 of semicircular shape is apertured to receive the mop and is provided with lugs 7, 8 to engage the sides of the bucket. Some or all of the coils of the helix may be of the same diameter. The upper end of the wire may be bent to form a guide for the mop, and in addition, or alternatively, a means for attachment of the wringer to the bucket. The wringer shown in Fig. 3 comprises a hollow perforated cone 9 internally screw-threaded, the bottom being closed by a perforated plate 13, as shown, or by a grid. The cone is secured to an inclined platform 11 fixed in a bucket 12. Instead of a cone a hollow cylinder may be employed. The wringer may be provided with a. tray adapted to lead back to the bucket, water escaping over the sides.
Patent GB-496811-A (GB)
Title: Improvements in methods of regulating vapour arc converters
IPC: H02M7/15
Filed: 1937-05-01
Abstract: 496,811. Converting. GENERAL ELECTRIC CO., Ltd., and DUNHAM, C. R. May 1, 1937, No. 12508. [Class 38 (ii)] Comprises a converting arrangement employing discharge devices wherein control of the moment of ignition is effected in dependence on the balance of a number of magnitudes as expressed by the equation a Cos B - bI - c= O, in which B is the angle of delay of the ignition, I is the load current, and a, b, c are constants. A further magnitude may be included proportional to the rate of change of current. In the form shown in Fig. 1, each grid of a discharge device 3 operating as a rectifier receives impulses from a transformer 15 when current flows through an auxiliary rectifier 13. The circuit of the rectifier 13 includes a voltage from the transformer 16 proportional to a Cos B, and voltages in opposition, from 18 proportional to the rate of change of load current, from 17 proportional to load current, and a constant voltage from 19 which may be varied to adjust the output voltage of the arrangement. When these voltages balance an impulse of current flows through the primary of the transformer 15. A further voltage across the condenser 21 proportional to the difference between the output voltage of the arrangement and a standard voltage 22 may be included in circuit. A construction of device 17 for obtaining a direct current proportional to the load current is described in the Specification. This consists of an A.C. supply in series with a choke and a rectifier, the choke being variably saturated by the load current so that the rectifier output varied in proportion to the load current. A mechanical arrangement for controlling a phase shifting transformer 55 for supply of grid potentials is shown in Fig. 3. A sliding arm 51 moved by a torque motor 53 exerts by means of the lever 46 a clockwise torque on the spindle 40 proportional to the term a Cos B. In addition, anticlockwise torques proportional to the current and rate of change of current, and constant torque by means of a weight 44 and pulley 45 are exerted on the spindle 40. The system moves to a position of equilibrium at which these torques balance and in doing so adjusts the phase shifting transformer 55 which supplies the grid potentials. Additional adjustments may be effected by moving the stator of the phase shifting transformer by means of a motor 57.
Patent GB-970222-A (GB)
Title: Improvements in liquid fuel burning apparatus
IPC: F23C7/02
Filed: 1963-03-29
Abstract: 970,222. Liquid fuel combustion apparatus. A. F. ANDEN. March 29, 1963 [April 17, 1962; Feb. 23, 1963], No. 12518/63. Heading F4B. [Also in Division F1] Liquid fuel combustion apparatus comprises a combustion chamber of circular cross-section open at one end, a nozzle for the supply of atomized fuel at the other end, which is connected to a source of compressed primary air, and a plurality of inclined guide vanes in the combustion zone extending nearly across the width of the chamber. In one embodiment, Fig. 1, the primary air and atomized fuel from the nozzle 7 are given a rotation by vanes 6 in the air supply cone 3 which is of the opposite sense to that given to air passing through the annular passage 4 by vanes 5. Helicoidal wings 14 mounted on a hub 15 in the combustion chambers directs the fuel-air mixture towards the walls of the chamber with a rotation which is opposed to that of the secondary air flowing in through channels 13, which are inclined towards the fuel supply end of the chamber. The secondary air flows through annular channels 11, 9 to the inlets 13, forming a cooling jacket and becoming heated. In a modification, Fig. 3, the wings 34a, 34b in the combustion chamber 23 are formed by inclined plates which are adjustable longitudinally of the chamber. A secondary combustion chamber 24 of enlarged crosssection, has tertiary air supply passages 32, supplying air with a whirl opposed to that of the air supplied to the combustion chamber 23 by passages 31. Further air is supplied near the outlet of the secondary combustion chamber 24 by passages 33 having an inclination opposed to that of inlets 32.
Patent GB-538334-A (GB)
Title: Improvements relating to electric vehicle drive systems
IPC: B60L7/02
Filed: 1940-08-05
Abstract: 538,334. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 5, 1940. No. 12603. Convention date, Aug. 4, 1939. [Class 38 (iii)] [Also in Group XXXVI] Vehicle motors 27 are braked by connecting them to a tubular resistor 10, 11 through which cooling water is passed in two parallel paths, the cross section of which increases towards the exit end. Movement of controller 30 to a braking position causes opening of valve 36a to drain water from a water and steam separator 23. Thereupon water admission valve 13 is opened. Flow of water, as determined by device 42 causes steam valve 19 to be opened and steam admitted to injectors 15, 16 to force the cooling water through the tubes 10, 11 to the separator 23 whence steam passes to the condenser 24. Opening of valve 18 causes closure of containers 46. Variation of braking effort is obtained by closure of contactors 59, 60, 61. Should formation of steam in the resistor become excessive the back-pressure as determined by devices 33, 34 causes the various valves and contactors to be de-energized until normal conditions again obtain in the resistor.
Patent GB-118465-A (GB)
Title: Improvements in or relating to Edge Runners, Pan and like Mills.
IPC: B02C15/14
Filed: 1917-09-03
Abstract: 118,465. Savage, J. E., and Brinjes & Goodwin. Sept. 3, 1917. Edge-runners and pans.-In a mill for grinding explosives &c. of the kind in which the runner-shafts are pivoted outside the edge of the pan, each runner-shaft is secured to arms which are arranged outside the pan and can rock on a shaft parallel to the runner-shaft, the arrangement enabling the runners to rise and fall while maintaining the faces parallel to the pan, and also isolating from dust the bearings of the arms. Dust-excluding devices are provided for the runner bearings and the driving-gear of the pan. As shown, each runner-shaft 7 is secured to arms 9 pivoted on a shaft 10 which is carried by the frame 8 and a standard 11. The arms are united by sleeves 13, 14 and webs 15. The runner is secured to a sleeve 16, recessed to receive a sleeve 18, which is formed on or secured to the arms, a metal washer 33 and a leather washer 19 being arranged at the ends of the sleeve 18. The inner end of the runner is provided with a cap 20. The pan 1 and the gearing 25 are surrounded by a casing 4, and the pan is formed with a lip 2 dipping into a water trough 3. The pan runs on rollers 32 mounted in standards 33, which can be adjusted vertically by means of screws 34 which rest on the base 12<1>. The standards are formed with lubricating- troughs 37.
Patent GB-592335-A (GB)
Title: Improvements in or relating to polymerisation products of ethylene
IPC: C08F4/50
Filed: 1945-05-22
Abstract: Polymers and interpolymers of ethylene are made by subjecting it to a pressure exceeding 50 atmospheres and elevated temperature in the presence of a catalyst mixture comprising metals and organic halides capable of yielding Grignard-type reagents and an anhydrous solvent. Suitable metals are magnesium and zinc. Suitable organic halides are methyl chloride, ethyl bromide, tert.-butyl iodide; cyclopentyl chloride, cyclohexyl bromide; phenyl chloride and bromide, toluyl bromide, xylyl iodide, naphthyl chloride; benzyl chloride; a -furyl bromide.  The solvent may be benzene, isooctane or diethyl ether. The process may be carried out as a batch, semi-continuous or continuous operation.  Interpolymers may be produced with propylene, isobutylene, styrene; methyl vinyl ether, tert.-butyl vinyl ether; vinyl fluoride and chloride; tetrafluoroethylene.  The low density products may be formed into orientable films and fibres, tubes, fillers for mattresses, pillows and life preservers and heat and sound insulation.
Patent GB-794547-A (GB)
Title: Improvements in or relating to extensible pit-props
IPC: E21D15/45
Filed: 1956-04-25
Abstract: 794,547. Fluid pressure pit props. VERSCHURE & CO'S SCHEEPSWERF EN MACHINEFABRIEK, N. V. April 25, 1956 [April 25, 1955], No. 12734/56. Class 20(2) [Also in Group XXVIII] In an extensible pit prop actuated by compressed air, a first admission of compressed air into the space above a floating piston 5 forces the piston 5 downwardly to displace pressure liquid from the tube 4 of the upper prop member through one way valves 12, 13 into the working space beneath the piston 3 of the upper prop member, thereby extending the prop into engagement with the mine roof. The space above the piston 5 is then vented and thereafter successively recharged with compressed air and vented so as to impart reciprocating motion, through the piston 5 and the liquid beneath the piston 5, to an axially bored differential piston having a large diameter part 8 slidable in a tube 6 and a small diameter part 10 slidable in a bore 11 in the piston 3. The piston 10, in co-operation with the one way valves 12, 13 associated with the bores in the pistons 10, 3 respectively, operates to pump liquid 'from the tube 4 to the space beneath the piston 3 to load the prop. The pressure in the working space is limited by a spring loaded relief valve 15 which when open, Fig. 2 (not shown), places the working space in communication with a space surrounding the tube 4 and communicating with the interior of the tube 4 through holes 7. The valve 15 can be manually operated to release the prop. An air filter 20 is provided for the compressed air. The space beneath the piston 8 and within the tube 6 contains resilient compressible cushions, such as tubular air filled bladders 22 to facilitate reciprocating movement of the piston 8, 10.
Patent GB-763183-A (GB)
Title: Improvements in or relating to preparation of m- and p-diisopropylbenzene
IPC: C07C15/02
Filed: 1954-05-03
Abstract: A diisopropylbenzene substantially free from o-diisopropylbenzene and trimethylindene is obtained by propylating benzene in an alkylation reaction with a propylene-containing gas containing no higher weight unsaturates, in the presence of a Friedel-Craft condensation catalyst to a mixture rich in polyisopropylbenzene, separating the polyisopropylbenzenes from the benzene, cumene, and diisopropylbenzenes, contacting the polyisopropylbenzenes in admixture with benzene with 0.1 to 2.0 mol. per cent of the disproportionation reaction mixture of aluminium chloride at a temperature in the range of 65-115 DEG  C. until the mixture is enriched in m-diisopropyl benzene and is substantially free from o-diisopropylbenzene and trimethylindane, and separating the m-diisopropylbenzene by distillation.  The initial alkylation may be catalysed at 50-80 DEG  C. with 80 per cent sulphuric acid or at temperatures from 50-115 DEG  C. with aluminium chloride.  In the disproportionation step the aluminium chloride powder is mixed with the benzene and polyisopropylbenzene at a temperature of 10 DEG  C. and the temperature is slowly raised to 115 DEG  C. Specifications 763,179 and 763,180 are referred to.
Patent GB-166755-A (GB)
Title: Improvements in and relating to magazine rifles, machine guns or the like
IPC: F41A21/10
Filed: 1920-05-10
Abstract: 166,755. B.S.A. Guns, Ltd., and Norman, G. May 10, 1920. Machine guns. - Relates to guns having the standard service breech-action and a small-bore barrel. According to the invention, the adapter, which carries the miniature cartridge, is made slightly smaller, either longitudinally or diametrically, than the service cartridge, so that a service cartridge will not fit the chamber of the gun, and the bore of the adapter is inclined so that the base of the rim fire cartridge is eccentric. In the construction shown, the adapter 1 is slightly shorter than the service cartridge, Fig. 3, and has an inclined bore 4. A screw 9 or spring may be provided to retain the miniature cartridge in the bore.
Patent GB-183283-A (GB)
Title: Mechanical starter and brake mechanism for small automobiles or runabouts
IPC: F02N3/00
Filed: 1921-05-05
Abstract: 183,283. Harper, R. O. May 5, 1921. Hand actuation.-In a combined engine-starting and brake-controlling device for motor-vehicles, a hand-lever movable axially and angularly can be used in one axial position as a starting-handle and in another position for actuating, holding on, and releasing a brake. In the form shown, the hand-lever B has a boss b<2> secured to a hollow shaft a supported at the rear end in a bearing a<1>. The boss b<2> is movable axially in a gate g and a spring e<1> within the bearing a<1> and the shaft a normally holds the parts in the position shown, so that a projection i<1> on an arm i on the shaft a engages an aperture in a lever connected by means of a bell-crank leverr j<2> and a link j<6> to a brake, which is preferably constructed as described in Specification 183,405. The brake is actuated by angular movement of the hand-lever B and is held in engagement by ratchet wheel c, e until released by axial movement of the wheel e. This is effected by means of a push rod h passing through the hollow shaft a and actuated by movement of the part b<1> of the hand-lever B within the part b<3>, Fig. 3.
Patent GB-418994-A (GB)
Title: Process of removing rust from and picking iron and steel
IPC: C23G1/08
Filed: 1933-05-03
Abstract: Iron and steel are freed from rust or pickled by treatment with waste sulphuric acid from benzol or petroleum refineries, the acid having been first purified, by diluting with water to 35--40 DEG  B<\>ae. and heating for 30--60 minutes at 90 DEG  C. either by direct heating or by the introduction of steam in such proportions and under such conditions that the temperature does not rise above 90 DEG , and then diluted.  The purification removes the resinous polymerization products but the purified acid retains a sufficient amount of sulphonated hydrocarbons to inhibit its action on the metal.ALSO:Iron and steel are freed from rust or pickled by treatment with waste sulphuric acid from benzol or petroleum refineries, the acid having been first purified, by diluting the water to 35-40 DEG  Be. and heating for 30 to 60 minutes at 90 DEG  C. either by direct heating or by introducing steam in such proportions and under such conditions that the temperature does not rise above 90 DEG  C., and then diluted.  The purification removes the resinous polymerization products, but the purified acid retains a sufficient amount of sulphonated hydrocarbons to inhibit its action on the metal.